0_0_17403266_28440.cpp:43:15: error: expected ')' before '{' token void dfs(int u{ ^ 0_0_17403266_28440.cpp: In function 'int main()': 0_0_17403266_28440.cpp:68:37: error: 'memset' was not declared in this scope memset(vis,false,sizeof(vis)); ^